According to one embodiment, a post-processing apparatus includes a first sensor, a second sensor, and a control unit. The first sensor detects an object in a predetermined area in which a predetermined post-process is performed on a sheet conveyed from an image forming apparatus. The second sensor detects an object at a position closer to an opening in the area than the position of the first sensor with respect to the opening through which the sheet passes when the post-processed sheet is discharged from the area. When the second sensor detects an object before the first sensor detects the object, the control unit performs a predetermined process for preventing the occurrence of a failure.

A sheet binding device includes a first binding unit that performs a first binding process of binding a sheet bundle having a first thickness or less without using a staple, and a second binding unit that performs a second binding process of binding the sheet bundle having a second thickness or less exceeding the first thickness using a staple, the first binding process by the first binding device is preferentially executed when the thickness of the sheet bundle is the first thickness or less, and the second binding process by the second binding unit is executed when the thickness of the sheet bundle exceeds the first thickness and is equal to or less than the second thickness.

A sheet processing apparatus includes a processing tray to place the sheet, a load tray provided on a downstream side of the processing tray in a transport direction, neat alignment plates provided outside a main body housing to shift in a width direction orthogonal to the transport direction and to align opposite sides of the sheet, a sheet support surface provided in a different position adjacent to the processing tray to support a sheet inserted from a manual feed opening, a binding processing apparatus to perform binding processing on sheets placed on the sheet support surface, a regulation surface to regulate a side edge of the sheet located at a side of the load tray, and a width-direction drive mechanism to shift the neat alignment plates between an alignment position aligning a sheet on the load tray in the width direction and a retract position different from the alignment position.

According to an example, printed media stack alignment may include actuating a belt and a paddle to shift first and second sheets to a stopper position represented by register of the first and second sheets against a stopper. The stopper may be actuated to shift the first and second sheets to an eject position, where the eject position is intermediate to a sheet deposit position and the stopper position. The belt and the paddle may be actuated to shift the first sheet, the second sheet, and a third sheet received at the sheet deposit position to the stopper position. The stopper may be actuated to shift the first, second, and third sheets to the eject position. Further, an ejector may be actuated to eject a stack including the first, second, and third sheets from the eject position.

A control device, to control a system having an image forming apparatus to form an image on a sheet based on an image forming job and a sheet discharge apparatus having stacking trays for the sheet, includes a storage storing stacking state information for each stacking tray, a generator, a display controller, and an input portion. The generator generates a system configuration image, and a sheet bundle image representing a sheet bundle stacked on each stacking tray based on the stored stacking state information. The display controller displays a screen in which the sheet bundle image is combined at a position of each stacking tray in the system configuration image. The input portion inputs designation of an image forming job corresponding to sheets to be taken out. The display controller displays an order of taking out the sheets corresponding to the image forming job designated through the input portion.

A recording system includes a recording portion that performs recording on a medium, a stacking portion that stacks the medium recorded by the recording portion, and a processing portion that processes a bundle of media stacked on the stacking portion, in which a controller that controls feeding of the medium to the stacking portion determines a maximum number of sheets of media to be stacked on the stacking portion, based on information on swelling of the medium recorded by the recording portion.

A sheet sorting apparatus comprising a first tray, a second tray, a conveyance unit, a tray detection unit, a stacking amount detection unit, and a control unit configured to control the conveyance unit to not convey the sheet to the second tray, in a case where the stacking amount detection unit detects that the amount of sheets reaches the predetermined amount, wherein the control unit is configured to permit the conveyance unit to convey the sheet to the second tray, in a case where the tray detection unit detects that the first tray is detached from the apparatus main body in a state where the stacking amount detection unit detects that the amount of sheets reaches the predetermined amount and conveyance of the sheet to the second tray by the conveyance unit is stopped.

There is provided a sheet storage device including a regulation unit that includes a first contact portion configured to contact a stacking unit, and a second contact portion configured to contact a facing member. The first contact portion contacts the stacking unit in a state of being urged toward the stacking unit. The second contact portion contacts the facing member in a state of being urged toward the facing member.

A control apparatus to control a system including an image forming apparatus and a sheet discharge apparatus. The control apparatus receives configuration information of the system, and discharge state information having a discharge destination and a stacking amount of sheets discharged by the sheet discharge apparatus, and job identification information of an image forming job of sheets to be picked up. The control apparatus generates a system configuration image based on the configuration information, generates a sheet bundle image based on the discharge state information, combines the sheet bundle image with the system configuration image based on the discharge destination, and displays them as combined. The sheet bundle image is displayed with a size corresponding to the stacking amount and a first sheet bundle image, which corresponds to the job identification information, and a second sheet bundle image, which does not correspond to the job identification information, are distinguishably displayed.

If an inter sheet on a designated feed tray during execution of a print job is lacking, and when a setting received via an operation unit is for a first mode, a control unit switches a feed source from the designated feed tray to another feed tray on which an inter sheet of the same size has been placed and continues the print job, and when the setting is for a second mode, interrupts the print job without switching the feed source from the designated feed tray to another feed tray. In a case where a plurality of feed trays are designated as a feed source, the control unit interrupts the print job without switching the feed source from the feed tray in which the inter sheet is lacking to another feed tray even if the setting is for the first mode.